Sweeping Robot

ABSTRACT

A sweeping robot, comprising a bottom shell, a face shell forming an accommodation chamber together with the bottom shell, and a lower cover, an upper cover, a sealing intermediate cover, a fan unit, and a motor which are disposed in the accommodation chamber, wherein the motor is fixed at the lower cover; the fan unit is mounted on an output shaft of the motor, and is located on the lower cover; the sealing intermediate cover covers the lower cover; the lower cover is provided with an air inlet; the sealing intermediate cover and the lower cover together limit the fan unit inside; the upper cover and the sealing intermediate cover form therebetween an air outtake passage in communication with the fan unit; and the bottom shell and the face shell are provided therebetween with an exhaust passage in communication with the air outtake passage.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is filed based on and claims priority to aChinese Patent Application No. CN202011357023X filed on Nov. 26, 2020,which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present invention relates to the field of intelligent robots, andmore particular to a sweeping robot.

BACKGROUND

At present, the operation mode of the existing intelligent sweepingrobot on the market is mainly divided into “suction” and “sweeping”,wherein the “suction” cannot be separated from a fan, and the structuraldesign of the fan can fundamentally influence “suction force”. FIG. 1shows an existing sweeping robot; the fan has a narrow exhaust passage100 and a large turn, which not only reduces the extension of thesuction force, but also directly exhausts the air at the tail of theexhaust passage without adjusting the direction of the exhausted air.The problems not only reduce the utilization rate of the fan itself, butalso are adverse to the improvement the use efficiency of theintelligent sweeping robot. In addition, in a fan assembly of thesweeping robot in the prior art, the exhaust passage 100 thereof isseparately disposed, thus improving the structural complexity and costof the fan assembly, and improving labor assembly cost and raw materialcost. The loss of the effective utilization rate of the fan reduces thesuction force of the fan.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides thesociety with a sweeping robot capable of improving the utilization ratioof the fan, and having a stronger suction force and a more compactstructure.

The technical solution of the present invention is: provided is asweeping robot, comprising a bottom shell, a face shell forming anaccommodation chamber together with the bottom shell, and a fan assemblydisposed in the accommodation chamber, wherein the fan assemblycomprises a lower cover, an upper cover, a sealing intermediate cover, afan unit, and a motor; the motor is fixed at the lower cover; the fanunit is mounted on an output shaft of the motor, and is located on thelower cover; the sealing intermediate cover covers the lower cover; thelower cover is provided with an air inlet; the sealing intermediatecover and the lower cover together limit the fan unit inside; the uppercover and the sealing intermediate cover form therebetween an airouttake passage in communication with the fan unit; an air outlet of theair outtake passage is directly opposite to the bottom shell; and thebottom shell and the face shell form therebetween an exhaust passage incommunication with the air outtake passage.

As an improvement of the present invention, a plurality of air outtakeholes are disposed on a side surface of the face shell, and theplurality of air outtake holes are in communication with the exhaustpassage.

As an improvement of the present invention, the plurality of air outtakeholes incline upward.

As an improvement of the present invention, the upper cover covers thesealing intermediate cover, and the sealing intermediate cover isintegrated by means of injection molding.

As an improvement of the present invention, the sweeping robot furthercomprises an air inlet silicon seal gasket, and the air inlet siliconseal gasket is disposed at the air inlet of an air intake passage.

As an improvement of the present invention, the motor is fixed at thelower cover via a first fastener.

As an improvement of the present invention, the sealing intermediatecover is disposed on the lower cover via a second connector.

As an improvement of the present invention, the second connector is ascrew or a clamping fastener.

In the present invention, the sweeping robot comprises a bottom shell, aface shell forming an accommodation chamber together with the bottomshell, and a lower cover, an upper cover, a sealing intermediate cover,a fan unit, and a motor which are disposed in the accommodation chamber,wherein the motor is fixed at the lower cover; the fan unit is mountedon an output shaft of the motor, and is located on the lower cover; thesealing intermediate cover covers the lower cover; the lower cover isprovided with an air inlet; the sealing intermediate cover and the lowercover together limit the fan unit inside; the upper cover and thesealing intermediate cover form therebetween an air outtake passage incommunication with the fan unit; and the bottom shell and the face shellare provided therebetween with an exhaust passage in communication withthe air outtake passage. The exhaust passage of the present invention islocated between the bottom shell and the face shell. Compared with theprior art, the present invention has a smaller volume, a simplerstructure, and a lower cost. The exhaust passage of the presentinvention can improve the utilization ratio of the fan, and has astronger suction force.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a stereoscopic schematic view of the prior art;

FIG. 2 is a vertical schematic view according to one embodiment of thepresent invention;

FIG. 3 is a sectional schematic view in the A-A direction of FIG. 2;

FIG. 4 is a partial exploded structural schematic view according to thepresent invention; and

FIG. 5 is an upward schematic view of FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 2-5, FIG. 2-5 disclose a sweeping robot,comprising a bottom shell 81, a face shell 82 forming an accommodationchamber together with the bottom shell 81, and a fan assembly disposedin the accommodation chamber, wherein the fan assembly comprises a lowercover 1, an upper cover 2, a sealing intermediate cover 3, a fan unit 4,and a motor 5; the motor 5 is fixed at the lower cover 1; the fan unit 4is mounted on an output shaft 51 of the motor 5, and is located on thelower cover 1; the sealing intermediate cover 3 covers the lower cover1; the lower cover 1 is provided with an air inlet; the sealingintermediate cover 3 and the lower cover 1 together limit the fan unit 4inside; the upper cover 2 and the sealing intermediate cover 3 formtherebetween an air outtake passage 31 in communication with the fanunit 4; and the bottom shell 81 and the face shell 82 is providedtherebetween with an exhaust passage 32 in communication with the airouttake passage 31. The exhaust passage 32 of the present invention islocated between the bottom shell 81 and the face shell 82. Compared withthe prior art, the present invention has a smaller volume, and a simplerstructure. The exhaust passage of the present invention can improve theutilization ratio of the fan, and has a stronger suction force.

In the present invention, preferably, a plurality of air outtake holes84 are disposed on a side surface of the face shell 82, and theplurality of air outtake holes 84 are in communication with the exhaustpassage 32. To be specific, in the embodiment, the plurality of airouttake holes 84 incline upward. As shown by the arrow in FIG. 3, theair is blown out of the exhaust passage 32 in an upward obliquedirection, thus avoiding the generation of a fugitive dust phenomenon,preventing secondary pollution (especially for a large fan), andavoiding blowing dust to a swept region again.

In the present invention, preferably, the upper cover 2 covers thesealing intermediate cover 3, and the sealing intermediate cover 3 isintegrated by means of injection molding. Such configuration mode has asimpler structure, less components and parts, less fault points, andbetter sealing performance.

In the present invention, preferably, the sweeping robot furthercomprises an air inlet silicon seal gasket 85, and the air inlet siliconseal gasket 85 is disposed at the air inlet of an air intake passage, soas to improve the sealing tightness of the air inlet and a roller brushassembly.

In the present invention, preferably, the motor 5 is fixed at the lowercover 1 via a first fastener; the sealing intermediate cover 3 isdisposed on the lower cover 1 via a second connector. In the presentinvention, preferably, the second connector is a screw or a clampingfastener.

TECHNICAL FIELD

The present invention relates to the field of intelligent robots, andmore particular to a sweeping robot.

BACKGROUND

At present, the operation mode of the existing intelligent sweepingrobot on the market is mainly divided into “suction” and “sweeping”,wherein the “suction” cannot be separated from a fan, and the structuraldesign of the fan can fundamentally influence “suction force”. FIG. 1shows an existing sweeping robot; the fan has a narrow exhaust passage100 and a large turn, which not only reduces the extension of thesuction force, but also directly exhausts the air at the tail of theexhaust passage without adjusting the direction of the exhausted air.The problems not only reduce the utilization rate of the fan itself, butalso are adverse to the improvement the use efficiency of theintelligent sweeping robot. In addition, in a fan assembly of thesweeping robot in the prior art, the exhaust passage 100 thereof isseparately disposed, thus improving the structural complexity and costof the fan assembly, and improving labor assembly cost and raw materialcost. The loss of the effective utilization rate of the fan reduces thesuction force of the fan.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides thesociety with a sweeping robot capable of improving the utilization ratioof the fan, and having a stronger suction force and a more compactstructure.

The technical solution of the present invention is: provided is asweeping robot, comprising a bottom shell, a face shell forming anaccommodation chamber together with the bottom shell, and a fan assemblydisposed in the accommodation chamber, wherein the fan assemblycomprises a lower cover, an upper cover, a sealing intermediate cover, afan unit, and a motor; the motor is fixed at the lower cover; the fanunit is mounted on an output shaft of the motor, and is located on thelower cover; the sealing intermediate cover covers the lower cover; thelower cover is provided with an air inlet; the sealing intermediatecover and the lower cover together limit the fan unit inside; the uppercover and the sealing intermediate cover form therebetween an airouttake passage in communication with the fan unit; an air outlet of theair outtake passage is directly opposite to the bottom shell; and thebottom shell and the face shell form therebetween an exhaust passage incommunication with the air outtake passage.

As an improvement of the present invention, a plurality of air outtakeholes are disposed on a side surface of the face shell, and theplurality of air outtake holes are in communication with the exhaustpassage.

As an improvement of the present invention, the plurality of air outtakeholes incline upward.

As an improvement of the present invention, the upper cover covers thesealing intermediate cover, and the sealing intermediate cover isintegrated by means of injection molding.

As an improvement of the present invention, the sweeping robot furthercomprises an air inlet silicon seal gasket, and the air inlet siliconseal gasket is disposed at the air inlet of an air intake passage.

As an improvement of the present invention, the motor is fixed at thelower cover via a first fastener.

As an improvement of the present invention, the sealing intermediatecover is disposed on the lower cover via a second connector.

As an improvement of the present invention, the second connector is ascrew or a clamping fastener.

In the present invention, the sweeping robot comprises a bottom shell, aface shell forming an accommodation chamber together with the bottomshell, and a lower cover, an upper cover, a sealing intermediate cover,a fan unit, and a motor which are disposed in the accommodation chamber,wherein the motor is fixed at the lower cover; the fan unit is mountedon an output shaft of the motor, and is located on the lower cover; thesealing intermediate cover covers the lower cover; the lower cover isprovided with an air inlet; the sealing intermediate cover and the lowercover together limit the fan unit inside; the upper cover and thesealing intermediate cover form therebetween an air outtake passage incommunication with the fan unit; and the bottom shell and the face shellare provided therebetween with an exhaust passage in communication withthe air outtake passage. The exhaust passage of the present invention islocated between the bottom shell and the face shell. Compared with theprior art, the present invention has a smaller volume, a simplerstructure, and a lower cost. The exhaust passage of the presentinvention can improve the utilization ratio of the fan, and has astronger suction force.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a stereoscopic schematic view of the prior art;

FIG. 2 is a vertical schematic view according to one embodiment of thepresent invention;

FIG. 3 is a sectional schematic view in the A-A direction of FIG. 2;

FIG. 4 is a partial exploded structural schematic view according to thepresent invention; and

FIG. 5 is an upward schematic view of FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 2-5, FIG. 2-5 disclose a sweeping robot,comprising a bottom shell 81, a face shell 82 forming an accommodationchamber together with the bottom shell 81, and a fan assembly disposedin the accommodation chamber, wherein the fan assembly comprises a lowercover 1, an upper cover 2, a sealing intermediate cover 3, a fan unit 4,and a motor 5; the motor 5 is fixed at the lower cover 1; the fan unit 4is mounted on an output shaft 51 of the motor 5, and is located on thelower cover 1; the sealing intermediate cover 3 covers the lower cover1; the lower cover 1 is provided with an air inlet; the sealingintermediate cover 3 and the lower cover 1 together limit the fan unit 4inside; the upper cover 2 and the sealing intermediate cover 3 formtherebetween an air outtake passage 31 in communication with the fanunit 4; and the bottom shell 81 and the face shell 82 is providedtherebetween with an exhaust passage 32 in communication with the airouttake passage 31. The exhaust passage 32 of the present invention islocated between the bottom shell 81 and the face shell 82. Compared withthe prior art, the present invention has a smaller volume, and a simplerstructure. The exhaust passage of the present invention can improve theutilization ratio of the fan, and has a stronger suction force.

In the present invention, preferably, a plurality of air outtake holes84 are disposed on a side surface of the face shell 82, and theplurality of air outtake holes 84 are in communication with the exhaustpassage 32. To be specific, in the embodiment, the plurality of airouttake holes 84 incline upward. As shown by the arrow in FIG. 3, theair is blown out of the exhaust passage 32 in an upward obliquedirection, thus avoiding the generation of a fugitive dust phenomenon,preventing secondary pollution (especially for a large fan), andavoiding blowing dust to a swept region again.

In the present invention, preferably, the upper cover 2 covers thesealing intermediate cover 3, and the sealing intermediate cover 3 isintegrated by means of injection molding. Such configuration mode has asimpler structure, less components and parts, less fault points, andbetter sealing performance.

In the present invention, preferably, the sweeping robot furthercomprises an air inlet silicon seal gasket 85, and the air inlet siliconseal gasket 85 is disposed at the air inlet of an air intake passage, soas to improve the sealing tightness of the air inlet and a roller brushassembly.

In the present invention, preferably, the motor 5 is fixed at the lowercover 1 via a first fastener; the sealing intermediate cover 3 isdisposed on the lower cover 1 via a second connector. In the presentinvention, preferably, the second connector is a screw or a clampingfastener.

What is claimed is:
 1. A sweeping robot, comprising a bottom shell (81),a face shell (82) forming an accommodation chamber together with thebottom shell (81), and a fan assembly disposed in the accommodationchamber, wherein the fan assembly comprises a lower cover (1), an uppercover (2), a sealing intermediate cover (3), a fan unit (4), and a motor(5); the motor (5) is fixed at the lower cover (1); the fan unit (4) ismounted on an output shaft (51) of the motor (5), and is located on thelower cover (1); the sealing intermediate cover (3) covers the lowercover (1); the lower cover (1) is provided with an air inlet; thesealing intermediate cover (3) and the lower cover (1) together limitthe fan unit (4) inside; the upper cover (2) and the sealingintermediate cover (3) form therebetween an air outtake passage (31) incommunication with the fan unit (4); an air outlet (311) of the airouttake passage (31) is directly opposite to the bottom shell (81); andthe bottom shell (81) and the face shell (82) form therebetween anexhaust passage (32) in communication with the air outtake passage (31).2. The sweeping robot according to claim 1, wherein a plurality of airouttake holes (84) are disposed on a side surface of the face shell(82), and the plurality of air outtake holes (84) are in communicationwith the exhaust passage (32).
 3. The sweeping robot according to claim2, wherein the plurality of air outtake holes (84) incline upward. 4.The sweeping robot according to claim 1, wherein the upper cover (2)covers the sealing intermediate cover (3), and the sealing intermediatecover (3) is integrated by means of injection molding.
 5. The sweepingrobot according to claim 1, wherein the sweeping robot further comprisesan air inlet silicon seal gasket (85), and the air inlet silicon sealgasket (85) is disposed at the air inlet of an air intake passage. 6.The sweeping robot according to claim 1, wherein the motor (5) is fixedat the lower cover (1) via a first fastener.
 7. The sweeping robotaccording to claim 1, wherein the sealing intermediate cover (3) isdisposed on the lower cover (1) via a second connector.
 8. The sweepingrobot according to claim 7, wherein the second connector is a screw or aclamping fastener.
 9. The sweeping robot according to claim 2, whereinthe upper cover (2) covers the sealing intermediate cover (3), and thesealing intermediate cover (3) is integrated by means of injectionmolding.
 10. The sweeping robot according to claim 3, wherein the uppercover (2) covers the sealing intermediate cover (3), and the sealingintermediate cover (3) is integrated by means of injection molding. 11.The sweeping robot according to claim 2, wherein the sweeping robotfurther comprises an air inlet silicon seal gasket (85), and the airinlet silicon seal gasket (85) is disposed at the air inlet of an airintake passage.
 12. The sweeping robot according to claim 3, wherein thesweeping robot further comprises an air inlet silicon seal gasket (85),and the air inlet silicon seal gasket (85) is disposed at the air inletof an air intake passage.
 13. The sweeping robot according to claim 2,wherein the motor (5) is fixed at the lower cover (1) via a firstfastener.
 14. The sweeping robot according to claim 3, wherein the motor(5) is fixed at the lower cover (1) via a first fastener.
 15. Thesweeping robot according to claim 2, wherein the sealing intermediatecover (3) is disposed on the lower cover (1) via a second connector. 16.The sweeping robot according to claim 3, wherein the sealingintermediate cover (3) is disposed on the lower cover (1) via a secondconnector.